diff --git a/src/defs.txt b/src/defs.txt
index 40d48ba..6dba60b 100644
--- a/src/defs.txt
+++ b/src/defs.txt
@@ -73,7 +73,7 @@ actor 0 0 0 callisto
     moon yes
     physics off
 
-actor 3000 0 0 moonlet
+actor 0 0 0 moonlet
     relativeto jupiter
     id thebe
     orbit 221900e3 0.66